*{
    margin: 0;
    padding: 0;
    text-decoration: none;
}

.head{
    background: url(../../recourse/image/aliyunbackground.jpg);
    background-size: cover;
    width: 100%;
    height: 535px;
}

.head-top{
    height: 64px;
    width: 100%;
    background-color: #ffffff;
    position: fixed;
    top: 0;
    font-size: 14px;
}

.head-top-left{
    display: inline-block;
    width: 747px;
    height: 64px;
}

.head-top-left-logo{
    display: inline-block;
    margin-top: 17.5px;
    margin-left: 25px;
    margin-right: 3px;
}

.head-top-left-content{
    display: inline-block;
    padding: 0,8px;
    font-size: 14px;
    margin-left: 8px;
}

.head-top-right{
    display: flex;
    float: right;
    width: 533px;
    height: 64px;
    justify-content: space-between;
    line-height: 64px;
}

.head-top-right-content{
    display: inline-block;
    position: static;
}

.head-top-left-content-extra{
    background-color: green;
    width: 200px;
    height: 100px;
    position: fixed;
    display: none;
    z-index: 100;
}

.head-top-left-content:hover .head-top-left-content-extra{
    display: block;
}

.head-top-right-search{
    width: 63px;
    height: 64px;
    text-align: center;
}

.head-top-right-login{
    background-color: #ff6a00;
    text-align: center;
    width: 80px;
    color: white;
}

.head-medium{
    position: relative;
    margin-top: 144px;
    padding-left: 43px;
    display: inline-block;
    height: 220px;
    z-index: 0;
}

.head-medium-h3{
    font-size: 42px;
    margin-bottom: 15px;
    z-index: 0;
}

.head-medium-p{
    font-size: 16px;
    height: 60px;
    margin-bottom: 20px;
} 

.head-medium-button{
    background-color: #ff6a00;
    width: 138px;
    height: 62px;
    text-align: center;
    line-height: 62px;
    color: white;
}

.head-bottom
{
    position: relative;
    top: 100px;
    width: 100%;
    height: 95px;
    display: flex;
    justify-content: space-around;
    background-color: #f0f0f0;
    z-index: 0;
}

.head-bottom > a{
    display: inline-block;
    height: 95px;
    width: 300px;
    text-align: center;
    border: black 1px;
}

.head-bottom-big{
    margin-top: 26px;
    font-size: 16px;
    color: #181818;
    margin-bottom: 3px;
    font-weight: 700;
}

.head-bottom-small{
    font-size: 14px;
    color: #848484;
}

.navigation{
    position: fixed;
    right: 30px;
    width: 20px;
    bottom: 260px;;
    display: inline-block;
    background-color: white;
    border-radius: 5px;
}


.navigation-top-img > img{
    width: 20px;
    height: 20px;
}

.navigation-bottom{
    text-align: center;
    writing-mode: vertical-lr;
    border-radius: 24px;
    height: 97px;
    width: 48px;
    color: black;
    letter-spacing: 4px;
}

.body > h3{
    text-align: center;
    padding-top: 40px;
    padding-bottom: 20px;
}

.body-recommond{
    text-align: center;
    font-size: 14px;
    color: #ff6a00;
}
